Front grill of a tractor



FIG. 1 is a front perspective view of our new front grill of a tractor design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a right side perspective view thereof;

FIG. 4 is a left side perspective view thereof;

FIG. 5 is a rear perspective view thereof; and,

FIG. 6 is a bottom perspective view thereof. 

The ornamental design for a front grill of a tractor, as shown and described. 